3. Dissociated thermomechanical testing

The first step in studying the mechanical strength of composites exposed to fire is usually to thermally degrade/decompose the materials and then characterize their residual mechanical behavior in tension or compression. This enables an initial link to be established between temperature, exposure time and the structural capabilities (stiffness, strength) of CMOs. Ideally, the study is first carried out under isothermal conditions (§ 3.1 ) to determine a temperature/degree of decomposition/degradation link, in order to improve understanding of the mechanisms induced by anisothermal thermal aggression. Within this framework,...